INST 1204: PIK3CA Mutations as Biomarkers for Metastasis in Colon Cancer

Status Completed

Clinical Trial Summary

This proposal seeks to further understand the contribution of the PIK3CA mutations in colon cancer, by correlating the type of hotspot mutation with the development of metastases in stage II and stage Ill patients. In order to do this, DNA will be extracted from either frozen or paraffin embedded colon cancer tissues to sequence PIK3CA, KRAS and BRAF. Clinical outcome data will be gathered to include metastases and survival to correlate with PIK3CA, KRAS and BRAF mutational status. Patients with stage II and stage Ill colon cancers will be identified in the University of New Mexico Human Tissue Repository and the NIH PLCO prevention trial biorepository. Existing banked tissues of stage II and Ill colon cancers will be collected. There will be no direct contact with living individuals. Epidemiological factors such as age, race, gender and outcome data of metastases and survival will be collected.

Clinical Trial Description

This proposal aims to identify PIK3CA mutations as a biomarker for metastasis. In order to do this, DNA will be extracted from either frozen or paraffin embedded colon cancer tissues to sequence PIK3CA, KRAS and BRAF. Clinical outcome data will be gathered to include metastases and survival to correlate with PIK3CA, KRAS and BRAF mutational status. Patients with stage II and stage Ill colon cancers will be identified in the University of New Mexico Human Tissue Repository and the NIH PLCO prevention trial biorepository. Existing banked tissues of stage II and Ill colon cancers will be collected. There will be no direct contact with living individuals. Epidemiological factors such as age, race, gender and outcome data of metastases and survival will be collected. Specific Aims: 1. To develop and standardize methods for high throughput DNA extraction and analysis from colon tumors of patients with stage II and stage III disease harboring PIK3CA exon 9 and exon 20 mutations. 2. To determine the correlation between wild type and PIK3CA, PIK3CA exon 9 and PIK3CA exon 20 mutations and development of metastatic disease and overall survival in stage II and stage III patients with colorectal cancer. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03951389
Study type	Observational
Source	New Mexico Cancer Care Alliance
Contact
Status	Completed
Phase
Start date	May 22, 2012
Completion date	October 21, 2019

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.